Harrow



C. J. KNIPP Jan. 27, 1931.

HARROW Filed llarch 28, 1930 5 Sheets-Sheet 1I nvcnlor 'mr, c7.

1 By Allume,

Jan. 27, 1931. c. J. KNLRP 1,790,051

HARROW Filed uamh 28, 1930 :s sheets-sheet 2 (u nbenlor Allorney C. J.KNIPP Jan. 27, 1931.

HARROW Filed March 28, 1930 5 Sheets-Sheet 5 nvenlor i yAllorneyPatented Jan. 27, 1931 ENTfiorFiCeE' i CHARLES J. KNIVPP, or*yNnAn'rIr'roN, MIssoUR'I Hannow;

"- Applcation ledMarch 28,

"1G -angularity of the discs may be e'XpeditiouslyV adapted and securedin adjusted position while the harrow is in operation and without thenecessity of stopping the same.v A

.OtherobjeCts 'of theinvention are to pro-A "15 vide a'harrow of theaforementioned character which will be simple in'constructioin' strong,durable, eiiicientinits use and which maybe manufactured at low cost.

All of the foregoing and still further ob'- 20 jects and advantages voflthe'invention may become' apparent from a study of thefollowingspecification, Vtaken in connection with the accompanying' drawingswherein like charactersv of reference designate corresponding partsthroughout the several views, and wherein Figure 1 is a top plan View ofa disc har- .row constructed in accordance with this invention. Y

Figure 2 is a View in side elevation thereof.V

Y Figure 3 is a fragmentary `view in bottom plan showing the means ofadjustably se-v curing the plate to` the beam. Y

Figure 4 is a cross sectional view taken substantially on the line 44 ofFigure 2 looking in the direction of the arrows.

Figure 5 is a fragmentary view in rear end elevation showing the meansfor pivotally connecting the discs to the plate.

Referring to the drawings in detail, it will be seen that the referencenumerall designates an elongated longitudinally extending beam ofsubstantially inverted U-shaped cross section and having a longitudinalslot in its forward end portion and a pair of spaced longitudinal slots3 in its rear end portion. Mounted for longitudinal sliding adjustmenton the rear end portion'of the beam 1 is a 59 horizontally disposed.plateor platform 4 Y opposite-sides of the plate or platform4 are i936.serial No. eases j which i, is niaabiy, Semmai 'on .Said Vbeam throughthe medium of thebolts 5 whichzexf tend slidably through' the slots 3..visclear; ly illustrated in Figure 1 ofthe drawings, the

curved and convergefforwardlylandan integral upstanding marginalflangeis provided 'on said plate;`

Y A lever 7 pivotallyfmounted on the beam 1 at an intermediate portionthereof as desig- 6U Vnatfcd at 8 and a segment Slis alsorigidly se-:cured onl the beaml .forreceiving fa I spring pressed detent ,101Voperatively; mounted on the leger 7 for securing said lever .inV adjust-A l ed position.y A bar 11 ispivotally secured to the lever`7 asfat 12and extends rearward l 'y therefrom and has its forward end securedto'the'rear portion ofthe plate 4. bar 13 alsoispivotallyconnectedftothe lever 7 at 12 and extends forwardly therefromin a sub.- stantially horizontalplane and has itshforward endfpivotallyand adj ustably connected to the upper endportion of an 14 which extendsfor swinging movement through rthe slot'2 inthe beam 1 and is pivotallj7supported between theV free endsof'the hangers 15 which Y are securedtothe opposite sides of the beam 1. This. construction is best illustratedin F i gure '4 of the drawings. yAs clearly seen in Figure 2, thefbar 13and the arm 14 are each provided with afseries of spaced holes which areadapted tobe selectively brought into registry with eachothertoadjustably couple said bar and arm together. A coupling elementlG ispivotally mounted on the arm 14 beneath the beam 1 to connect theharro-w to a suitable `draft*implement rsuch as a tractor.

A pair of bars 17,' preferably of angle iron, are pivotally mounted, asat'18, beneath'the plate 4 and adjacent opposite sides of the re'ar endportion of the beam l. As best seen in Figure'l ofthe drawingsthe barsl17 eX- tend substantially parallell withthe rear edge of thegplate 4and project beyond the oppositeA side,V of said plate. rIfhe -bars 17are adapted forswinging movement in a horizon- Y tal,planebeneath theVplate 4and have se-` curedto their upper sides adjacent their outerends a pairof brackets 19` which slidably engage-ever the flange t Qnsadplate-t- Said 199 brackets constituting means for supportingV theouter end portions of the bars in a manner to -permit'swinging movementthereof. Arms 2O depend from the opposite end portions of the bars 17and are provided in their l free end portions with bearings forrotatably supporting the shafts 21 upon which are mounted the barrowdiscs 22.v Rearw'ardly diverging brace arms 23 are secured to oppositesides of the beamwl and have their rear ends loosely connectedto'theforwardly prof jecting angular end portions 24 of the outer-L most ofthe shaft supporting arms 20, as clearlyillustrated in Figuresl and12ofthe drawings. Additional braces 24 are connected to the outer portionsofthe brace armsv 23 Y Y. and extend upwardly therefromand have itspivotalmounting 8 and the fplate i is thus 'moved longitudinally on thebeamV 1 through themediumof the connecting` bar 11. Sliding movement ofthe plate lvr imparts swinging movement tov the bars 17 through themediumV of the pivotal connection 18 between the plate and the inner endportion of each `of said bars. before stated, the connecA tion betweenthe brace Yarms 23 and the portions 24E of the outermost of the arms 2Oand also between the additional braces 24 and the Y bars 17 willl ermitswinging movement of i b D said bars `17 thereon.` The 'connectionbetween the inner Vbraces 25 and the portions 27 of the'innermost arms20 is alsosuiicientlyv loose to permit the slight swinging movement' ofthe bars 17 which would occur at thispoint.

' 1t will thus be seen that I have provided a harrow wherein theangularity of the discs i with respect to the direction of travel ofthelharrow may beexpeditiously adjusted while the device is in operation. 4Itis believed thatthe many advantages of ia discharrow constructed inaccordance with this invention will be readily understood, and

mounted in spaced relation on each ofthe shafts and means mounted onthebeam for shifting the` plate longitudinally in a manner to swing thebars in a horizontal plane.

2. A harrow of the character described comprising a beam, a platemounted for longitudinal sliding movement on the beam, an uptu-rnedflange formed integrally on the marginal portion of the plate, a pair ofbars v thereto, harrow discs mounted on eachv shaft and manuallyoperable means mounted on the beam forA shifting the platelongitudinally on said beam.

8. A harrow of the .character described comprising abeam, a platemounted for longitudinal sliding movement on the rear end portion of thebeam, an"k integralfupturned flange on the marginal portion of theplate, a pair of bars pivotally connected at their inner ends beneaththe plate for swinging movement in-a horizontal plane thereon, bracketssecured to the outer portions of the bars slidably' engaged over the.flanges on the opposite side ofthe plate in a -manner 'to support theouter portionsof the bars for swinging movement therebeneath, means forshifting `the plate horizontally and longi tudinally on the beam in amannervto swing the bars, braces extending outwardly from the beam andpivotally connectedto intermediate portions of the bars to permit thesame to beswung by the plate and barrow gangs mounted on said bars.v

In testimony whereof I affix my signature.

CHARLES J. KNIPP.

although the preferred embodiment of the I invention is as illustratedand described, it

is to be understood that changes in the details of construction may behad which will fall within the scope of the invention `as claimed. I Y

VVhat is claimed is A 1; A harrowrof the character `described comprisinga beam, a plate'slidably mounted for longitudinal movement yon'the beam,a f 'i pair vof bars pivotally conne`cted,`.at their inconnected tothebars, a shaft secured to each bary in spaced relation'thereto, barrowdiscs ner ends, to the plate on oppositesides of the -Y beam, bracessecured to the beam' and loosely

